40166459 has 2 divisors, whose sum is σ = 40166460. Its totient is φ = 40166458.

The previous prime is 40166449. The next prime is 40166509. The reversal of 40166459 is 95466104.

40166459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40166459 is a prime.

It is a super-2 number, since 2×40166459² = 3226688857197362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40166449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20083229 + 20083230.

It is an arithmetic number, because the mean of its divisors is an integer number (20083230).

Almost surely, 2^40166459 is an apocalyptic number.

40166459 is a deficient number, since it is larger than the sum of its proper divisors (1).

40166459 is an equidigital number, since it uses as much as digits as its factorization.

40166459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 40166459 is about 6337.7013971944. The cubic root of 40166459 is about 342.4689342594.

The spelling of 40166459 in words is "forty million, one hundred sixty-six thousand, four hundred fifty-nine".